- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 31/444 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. amrinone
Patent holdings for IPC class A61K 31/444
Total number of patents in this class: 5751
10-year publication summary
|
326
|
352
|
375
|
347
|
348
|
373
|
348
|
331
|
481
|
403
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novartis AG | 10730 |
110 |
| Takeda Pharmaceutical Company Limited | 2705 |
106 |
| Merck Sharp & Dohme LLC | 3760 |
86 |
| Daiichi Sankyo Company, Limited | 1884 |
74 |
| Boehringer Ingelheim International GmbH | 4642 |
68 |
| Bristol-myers Squibb Company | 4867 |
61 |
| Gilead Sciences, Inc. | 2045 |
59 |
| Pfizer Inc. | 3368 |
54 |
| Santen Pharmaceutical Co., Ltd. | 600 |
53 |
| F. Hoffmann-La Roche AG | 7941 |
52 |
| Janssen Pharmaceutica N.V. | 3369 |
44 |
| Vertex Pharmaceuticals Incorporated | 1623 |
42 |
| AstraZeneca AB | 2908 |
41 |
| Hoffmann-La Roche Inc. | 3461 |
38 |
| Genentech, Inc. | 3994 |
35 |
| Dana-Farber Cancer Institute, Inc. | 2585 |
35 |
| Amgen Inc. | 4106 |
34 |
| The Regents of the University of California | 20059 |
33 |
| Merck Sharp & Dohme Corp. | 2191 |
33 |
| Epizyme, Inc. | 374 |
31 |
| Other owners | 4662 |